Gul'dan's Gate

{t}: Add one mana of any color. If you control another gate, add 2 mana of any one color.
{3}{t}: Add a Portal counter and each player sacrifices a creature. If Gul'dan's Gate as 4 or more Portal counters on it, sacrifice it and draw up to X cards where X is the number of creature cards in all graveyards. Lose 1 life for each card drawn in this way.